In this undated photo provided by the Sala de Prensa UNAM, Carlos Santamaria Diaz shows his university identification card, in Cuernavaca, Mexico. Mexico’s National Autonomous University, better known by its initials UNAM, says it has admitted the 12-year-old student to its undergraduate degree program in biomedical physics. (Sala de Prensa UNAM photo via AP)

In this undated photo provided by the Sala de Prensa UNAM, Carlos Santamaria Diaz speaks during an interview in Cuernavaca, Mexico. Mexico’s National Autonomous University, better known by its initials UNAM, says it has admitted the 12-year-old student to its undergraduate degree program in biomedical physics. (Sala de Prensa UNAM photo via AP)

In this undated photo provided by the Sala de Prensa UNAM, Carlos Santamaria Diaz sits with his parents, Arcelia Diaz and Fabian Santamaria, during an interview in Cuernavaca, Mexico. Mexico’s National Autonomous University, better known by its initials UNAM, says it has admitted the 12-year-old student to its undergraduate degree program in biomedical physics. (Sala de Prensa UNAM photo via AP)